Motorcycle trailer



FIG. 1 is a left side and rear perspective view of a motorcycle trailer showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a rear elevation view thereof. 

The ornamental design for a motorcycle trailer, as shown and described. 